Modern Bt Techniques - Florence 2016

1716 / 1840

25
30
35
40
in cm3
On the usefulness of
0
5
10
15
20
10 20 30 40 50 60 70 80 90 100
bladder
bladder
wall
relative dose
volume
D2bext
= D2 bw
D5 bw
D10bw D5bext
D10 bext
Pat #5
30
35
40
in cm3
Cut off
-volume
organ or organ-wall
contouring, DHVs:
in the small-volume-
part of the graphs,
the curves tend to
come very close
together
0
5
10
15
20
25
10 20 30 40 50 60 70 80 90 100
rectum
rectum
wall
D2rext
~D2rw
D5rext
D5rw
D10rext
D10rw volume
relative dose
Fig.1
2-3 ccm
(from: Wachter-Gerstner et al. R&O 2003)